Nordstoga, Ingunn
Drage, Mona
Steen, Tore Wælgaard
Winje, Brita Askeland http://orcid.org/0000-0003-2858-7248
Funding for this research was provided by:
Blakstad and Maarschalk Tuberculosis Fund (na)
Guldahl legate (na)
Norwegian Health Association (na)
Article History
Received: 7 September 2018
Accepted: 9 June 2019
First Online: 21 June 2019
Ethics approval and consent to participate
: The study was approved by Regional Committee for Medical and Health Research Ethics, South East Norway (2014/1500). Enrolment in the study was based on informed written consent from all participants.
: The manuscript does not include any identifiable person data requiring consent for publication.
: The authors declare that they have no competing interests.